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Finding the Fourth Proportional to 503,899.80, 756,141.30 and 188,388.60

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Solution

The fourth proportional to 503,899.80, 756,141.30 and 188,388.60 is: 282,691.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,899.80 : 756,141.30 = 188,388.60 : x
  2. Step 2: Convert to fraction form
    503,899.80/756,141.30 = 188,388.60/x
  3. Step 3: Cross multiply
    503,899.80x = 756,141.30 × 188,388.60
  4. Step 4: Simplify right side
    503,899.80x = 142,448,400,909.18
  5. Step 5: Solve for x
    x = 142,448,400,909.18/503,899.80
  6. Step 6: Final answer
    x = 282,691.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.